Israeli Minister Benny Gantz on Wednesday expressed cautious optimism that a new outline for a possible hostage deal could move forward.

Gantz, a member of the Israeli war cabinet, said at Israel's Defense Headquarters Wednesday that there are "attempts" to "promote a new outline" for a hostage deal, and there are "initial signs that indicate the possibility of moving forward."

"We will not stop looking for the way, and we will not miss any opportunity to bring the girls and boys home," Gantz said.

-ABC News’ Ellie Kaufman and Dana Savir

Eight patients who died because of a lack of electricity at Nasser Medical Complex in Gaza are still in their beds inside of the hospital among living patients, the Hamas-run Gaza Ministry of Health said Wednesday.

The Ministry of Health said the bodies are still in the hospital because Israeli forces refuse to remove them.

The bodies "have begun to swell and show signs of decomposition, posing a danger to other patients," the Ministry of Health said in a statement.

Israeli authorities denied these claims and said no bodies are still inside Nasser Hospital.

The Israel Defense Forces has been operating inside of Nasser Hospital for the last week. On Monday, the IDF announced its soldiers had arrested 200 suspected Hamas members at Nasser Hospital.

-ABC News’ Ellie Kaufman and Camilla Alcini

Israel is weighing the possibility of sending a delegation back to Egypt for continued negotiations over a potential cease-fire or hostage deal with Hamas, an Israeli political source told ABC News on Wednesday.

There is some cautious optimism over the latest round of talks in Cairo, the source said.

Egypt, along with Qatar and the United States, has been mediating talks between the warring sides.

-ABC News' Jordana Miller and Morgan Winsor

Israel is preparing to reopen the Karni border crossing to facilitate the entry of humanitarian aid into the northern Gaza Strip, an Israeli political source told ABC News on Wednesday.

Israel shuttered the Karni crossing, located on the border between southwestern Israel and northeastern Gaza, when Palestinian militant group Hamas came to power in the enclave in 2007 before permanently closing the crossing in 2011.

Northern Gaza has been isolated by the Israeli military and almost completely cut off from aid for weeks, according to the United Nations.

-ABC News' Jordana Miller Morgan Winsor

The U.S. voted against a resolution calling for an immediate cease-fire at Wednesday’s United Nations Security Council meeting, The Associated Press reported.

The U.S. was the only nation of the 15 permanent Security Council members to vote against the measure, according to the AP.

U.S. Ambassador to the U.N. Linda Thomas-Greenfield said "an unconditional cease-fire without any obligation for Hamas to release hostages" was irresponsible.

"While we cannot support a resolution that would put sensitive negotiations in jeopardy, we look forward to engaging on a text that we believe will address so many of the concerns we all share -- a text that can and should be adopted by the council, so that we can have a temporary cease-fire as soon as practicable, based on the formula of all hostages being released," she said.

The U.S. has been circulating its own draft resolution on Gaza that calls for a temporary cease-fire conditioned on the release of all hostages, while also condemning Hamas for the Oct. 7 attack that sparked the war, according to senior administration officials familiar with the matter.

If the proposal were to be adopted by the U.N. Security Council, it would mark the first time the body has formally condemned Hamas’ actions.

The officials say the draft also makes clear "that under current circumstances a major ground offensive into Rafah should not proceed" and that there can be no reduction in territory in the Gaza Strip or any forced displacement of Palestinians, while also calling on Israel "to lift all barriers to the provision of humanitarian assistance, open additional humanitarian routes, and to keep current crossings open."

The senior officials signaled that American diplomats wouldn’t rush the text to a vote and that they intended on "allowing time for negotiations."

While hostage talks have sputtered over the past couple of weeks, senior administration officials said they were making some progress.

"The differences between the parties, they have been narrowed. They haven’t been sufficiently narrowed to get us to a deal, but we are still hopeful and we are confident that there is the basis for an agreement between the parties," one official said.

-ABC News' Shannon Crawford